Siemens NXAIR M - Page 219

Panels with motor operating mechanism control
139-2021.9 / 07 NXAIR M 219
Procedure
To open the actuating opening for racking, lift the operating slide as far as it will go and hold
it.
Push the racking crank for moving the withdrawable circuit-breaker onto the operating shaft,
and turn clockwise as far as it will go.
Fig. 369: Lifting the operating slide
Fig. 370: Turning the racking crank clockwise
Remove the racking crank for moving the withdrawable circuit-breaker.
Turn the double-bit key clockwise as far as it will go to block manual access and release
electrical racking. The operating mode indicator changes to "M".
from
to
Fig. 371: Turning the key clockwise
Remove the double-bit key.
To close the actuating opening, push the operating slide down as far as it will go.
Close the control door.
Fit a padlock to the control door and close the padlock.

The withdrawable circuit-breaker has been manually racked from test position to service
position.